Improvement in ftymfs



v l u chaced time pme anpe,

'between the collars,

l ISAAC N. FORREST'ER', 0F BRIDGEPORT, CONNECTICUT.

Leners Peeem Ne. 98,368, ezeeeez Deeembee 28, 1869'.

IMPROVEMENT .IN PUMPS,

` l *OH-F The Schedule referred to in these L'ettera Patent and mal-tingpart of the sama.

1'0 all whom it may concern .-1

Be it known that I, ISAAC N. FoRnEsTER, of Bridgeport, in thecounty ofFairfield, and State of Connecticut, have invented certain new anduseful Improvementsin Pumps, of which the following is afull, clear, andexact description, reference being had to the accompanying drawings,which make part of this specification, and in whichv Figure l representsa vertical central section ot' my improved pump;

Figure 2, a plan or top view of its cylinder; and

Figure 3, a view of the bottom ofthe same, as seen from below.

My invention relates to that class of' pumps in which a moving cylinderor barrel is vemployed in connection with a stationary piston andtubularrod, and consists in an improved construction and arrangement ofthe receiving and delivery-valves by'which the tubular piston-rod ismade to serve .for aediseharge-pipe as Well as a guide to the barrel inits movements, as hereinafter more fully set forth.

In the accompanying drawings, which show a convenient arrangement ot'parts for carrying out the ob jects of my invention- A represent-s thecylinder or barrel of the pump, which is reciprocated upon the centraltubular, pistonrod and discharge-pipe B.

`The pipe B, which is closed at bottom, is fixed Ato a`baseep1ate, at ythe bottom of the well, and supported by a collar, b', at its top.

C represents a pistou-valve, which fits truly within the barrel A, andsurrounds the tubular rod B between the two collars B' B secured thereonby set-screws or keys.

The rod B is perforated with a seriesv of holes, bb, and acircularopeniug is formed at the centre of the valve C, to prevent thesame from beingin contactwith the rod,and allow access of water to theholes b.

The collars B are set suiciently far apart to allow the valve C toeriseand fall a proper distance to admit lthe water which passes through thereceiving-valves to the rod B, .which serves as a discharge-pipe for thesame.

The lower end of the barrel is closed by a bottom I head, A2, in whichare placed the lower receivingvalves a a. These are wing-valves ot' theordinary construct-ion.

a piece therewith, as in the present instance, or made ieut.

In it are formed the openingsv al, which are closed placed within thebarrel, and moving verticallyupon regulated by the stems a2.

tremity to form a spout. f

barrel A.

bending when in operation. f

same will enter the lower receiving-valves a a and ll When the barrelisrmoved upward, the valve O will rise and admit this water through theholes b b'to the tubular rod B, and the upper receiving-valveI A1 willfall and allow water to ill the space above the valve C.

The water will' be in turn discharged through the holes b and rod B, bythe falling ofthe .valve C and rising of valve A3 on the-next downward.stroke, and

the pump. y

What I claim as my invention,and desire to secure by Letters Patent,is-. e

rIhe combination of the moving barrel A, sfationary perforated tubularrod B, collare 13.1, piston-valve C, and receiving-valves a a, A, thewhole arranged and `operating substautiallyas and for the purpose setlforth.

In testimony whereof, I bave hereunto subscribed my name,

l ISAAC N. FORRESTER.

'Witnesses GEO. S. PRATT,

SAM. B. SUMNER.

The upper head ofthe barrel may be either cast in the space around therod B, and below the valve C, on its downward stroke.

s0 on in a continuous stream during the operation of separate, andsecured lby bolts, as found most conven-vA e by the upperreceiving-valve A4, which is a atvalve n the rod B, being guided andhavingr itsrange of motion The barrelA is reciprocated by means rof abrake 'or lever, D, having arms ot" unequal-.lengtli,and Vpivn i oted tostandards d on the top of the tubular rod B, which' is curvedin-semicircular form at itsrupper exf The short arm ofthe leverD ispivoted toaldod, D", f e which passes through a guide, d', securedjtothe r'od B, and is suitably secured at bottom to the capof'th, The guided prevents the rod D from springing or The barrel A being alwaysimmersed in water, the i l

